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41.
Religion plays a prominent role in Latino culture and could be influential during difficult life transitions, such as those experienced during the immigration process. This study examines relations between religious coping, acculturative stress, and alcohol use in a sample of 415 recent Latino immigrants. Higher levels of acculturative stress were associated more positive and negative religious coping. Positive religious coping was related to lower alcohol use. Negative religious coping moderated the relationship between acculturative stress and alcohol use. Participants who used more negative religious coping had higher rates of alcohol use when experiencing high levels acculturative stress. Implications for culturally tailored prevention/interventions are discussed.  相似文献   
42.
Indicators of academic achievement for bilingual students can be inaccurate due to linguistic heterogeneity. For indigenous populations, language shift (the gradual replacement of one language by another) is a factor that can increase this heterogeneity and poses an additional challenge for valid testing. We investigated whether and how indigenous populations can be validly included in a large-scale assessment program. We gave Mexican preschool Mayan students aged 5 to 6 years the same set of mathematics items in three versions: (1) original in Spanish, (2) Mayan translation, and (3) content equivalent, developed from scratch in Mayan. Also, we collected information on the students’ and the teachers’ use of Spanish and Mayan, and on the communities’ support of the two languages. Students performed poorly on the three versions. Generalizability theory-based analyses revealed considerable performance inconsistency across items and language versions and low generalizability and dependability coefficients. This performance instability appears to stem from a dwindling support of the Mayan language in Mayan schools and communities. Fair, valid assessment of indigenous populations in either their languages or their countries’ dominant languages appears to be difficult to accomplish with current testing models and policies.  相似文献   
43.
Animal Cognition - Domestic dogs have proved to be extremely successful in finding hidden food following a series of human social cues such as pointing (an extended hand and index finger indicating...  相似文献   
44.
Cancer patients report numerous adverse symptoms associated with their disease and treatment including cognitive dysfunction, fatigue, and affective distress. Cognitive dysfunction is ubiquitous in patients with primary central nervous system (CNS) cancer and recent evidence has documented similar deficits in patients with non-CNS cancer as well. Both the cancer itself and treatments including chemotherapy, biological response modifiers, and hormonal therapies have been demonstrated to adversely impact cognitive and neurobehavioral function. Neuroimaging and neurophysiological investigations have likewise revealed alterations in brain function that are helping to account for the nature of these cognitive disorders. Similarly, preclinical animal research is assisting to identify the pathophysiological mechanisms that underlie treatment-related neurotoxicities. The coalescence of multidisciplinary clinical and research efforts hold promise for the development of interventions that may offer neuroprotection in addition to currently available symptomatic therapies and cognitive rehabilitation techniques.  相似文献   
45.
Differential-reinforcement-of-low-rate (DRL) schedules can be used to decrease, but not eliminate, excessive bids for teacher attention in a classroom. There are two primary methods of implementing a DRL: full session and spaced responding. Some research suggests that the full-session DRL may eliminate target responding. The purpose of the current study was to compare the effectiveness of and preference for the two DRL methods in a simulated preschool classroom. Three participants completed difficult puzzles in baseline, both DRL, and differential-reinforcement-of-other-behavior (DRO) conditions. In the spaced-responding and full-session DRL conditions, the optimal rate of bids for attention was approximately 75% (two participants) or 50% (one participant) of baseline responding. All participants requested attention near the optimal criterion in both DRL conditions and at a lower rate (near zero) in the DRO condition. Treatment preference of the students was assessed in a concurrent-chain arrangement. All participants preferred both types of DRL conditions to DRO, and two participants showed a preference for the full-session DRL. Results suggest that either DRL procedure may be suitable for a preschool classroom, but a full-session DRL may be ideal.  相似文献   
46.
Earthquakes are unpredictable events, thus seismic preparedness of households should be fostered, considering the specific needs of each family. Children, for example, are particularly vulnerable to disasters and to the effects of their consequences, but can also act as promoters of preparedness within families. Being part of a wider research, this qualitative study intends to better understand seismic preparedness within families with children in S. Miguel, the largest and most populated island of the volcanic archipelago of the Azores. Two semi-structured interviews were conducted. The first interview was conducted with 125 family representatives, addressing their current preparedness measures. From these representatives, 105 families that had non-existent or insufficient preparedness were selected for a second interview. In the time between the two interviews, the families were instructed to develop seismic preparedness measures. The process of development of these measures was also assessed. Data were analysed using content analysis and frequency analysis. Results point to low levels of preparedness, both at the time of the initial interview and developed subsequently, and families adopted few preparedness measures specifically targeting their children's needs. The results highlight, therefore, that household seismic preparedness should be promoted, with clear indications regarding preparedness specifically for families with children.  相似文献   
47.
The literature provides solid documentation of the negative consequences of poor psychosocial functioning and behavioral problems in early childhood. Children facing economic disadvantage are at higher risk for poor socio-emotional development and problem behaviors, which draws attention to the need for prevention targeted at this risk group. The aim of our study was to analyze the impact of an evidence-based teacher-training program, the Incredible Years Teacher Classroom Management (IY-TCM), on the behavior of economically disadvantaged Portuguese children. Participants were 1030 children aged 3–6 years, from 65 preschool classrooms selected for their high percentage of children from economically disadvantaged backgrounds. The study followed an experimental randomized controlled between-group design, with pre- and post-intervention assessments. Teachers in the experimental group attended the IY-TCM program, implemented in six monthly workshops, and four sessions of individual in-class support. Children outcomes were evaluated with the Preschool and Kindergarten Behavior Scales—2nd Edition (Social Skills and Problem Behavior scales). After the intervention, preschoolers in the IY-TCM classrooms showed more improvements in their social skills and more decreases in problem behavior. Children with lower levels of social skills (high risk) at pre-intervention and those coming from families in economic need showed greater improvements in social skills, but these effects were not observed for problem behavior. Results support the growing evidence of the effectiveness of the IY-TCM as a stand-alone, non-adapted program in a Portuguese cultural context, which can play a protective role in children’s lives and thus bridge the gap between children coming from different economic backgrounds.  相似文献   
48.
Recognition of predation risk from cues released from injured heterospecific could be beneficial when prey belongs to the same prey guild. Here, we performed three experiments. Experiment 1 showed that P. thaul tadpoles reduced their activity levels when exposed to conspecific injury cues, but not when exposed to amphipod injury cues. Experiment 2 tested whether P. thaul tadpoles can learn to recognize predation risk from chemical cues released from injured heterospecifics from the same prey guild (amphipod, Hyalella patagonica). A group of tadpoles were conditioned by exposing them to a specific concentration of amphipod injury cues paired with conspecific injury cues. Two days later, we evaluated changes in the activity of tadpoles when they were exposed to amphipod cues. As a control of learning, we used an unpaired group. Additionally, we used more control groups to fully investigate the learning mechanism. Our results showed that tadpoles can learn to recognize predation risk from injured amphipods and that the mechanism underlying the observed learned response could be associative. Experiment 3 replicated Experiment 2 and also showed that a low concentration of amphipod cues did not sustain that learning.  相似文献   
49.
50.
Differential‐reinforcement‐of‐low‐rate (DRL) schedules are used to decrease the overall rate of, but not eliminate, a target response. Two variations of DRL, spaced‐responding and full‐session, exist. Preliminary comparative analyses suggest that the two schedules function differently when unsignaled. We compared response rates under these two DRL variations with and without signals. In Experiment 1, five preschool students played a game in which points were earned under DRL schedules. In some sessions, a stimulus signaled when responses would be reinforced (S+) or not reinforced (S‐). In others, only an S‐ was present. Signals (S+/S‐) facilitated and maintained responding in both types of DRL schedules. In Experiment 2, we modified the signals with five different preschoolers. Instead of an S‐ only, we did not present any signals. Elimination and high variability of the target response were observed with the S‐ only and absence of S+/S‐, respectively. Signaled DRL schedules are recommended for application.  相似文献   
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